Granted Patent
Utility
US 4,397,131 · App. 06/229,299
Automatic bagging system for can ends
Inventor:
Gerald R. Anderson
Patented Case
View Patent ↗
Granted: Aug 9, 1983
Filed: Jan 28, 1981
Inventor
Gerald R. Anderson
Assignee (at issue)
American Can Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.